Preparation of the Elusive Red Chlorophyll Catabolite by Partial Synthesis

Preparation of the Elusive Red Chlorophyll Catabolite by Partial Synthesis 

11 red chlorophyll catabolite 10 primary fluorescent chlorophyll catabolite 

Cd-15 Cd-methyl-19,20-dioxo-19,20-seco-, —16 methyl-4,5-dioxo-4,5-secopheophoibidate a 

32-didehydro-4,5,10,17,18-(22//)-hcxahydro-132-(methoxycarbonyl)-4,5-dioxo-4,5-seco-phytoporphyrin), a monoacid, in nearly quantitative yield (76). 

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